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Health Hazard Summary: DOH and ATSDR conclude that the Penta Wood Products NPL site
is a Public Health Hazard because of past exposures to site chemicals and the potential for future
exposure to contaminated groundwater. It is an indeterminate public health hazard for exposure
to current levels of contamination remaining in surface media.

DOH and ATSDR have concluded the following:

On-site groundwater is contaminated and would pose a serious public health threat if people
were to drink it. The future contamination of nearby private drinking water supplies is a
public health concern. Enforcement agencies plan a comprehensive study of groundwater
contamination in the next phase of remediation at the site. This information will help DOH
and ATSDR better define the potential threat of exposure to contaminated drinking water.
Until those data are available, future exposure to chemicals in drinking water poses an
indeterminant health risk.

Although there is partial fencing around the site, it is possible for people to trespass and come
in contact with residual contaminants left in surface materials. Without data to fully evaluate
this hazard, the site poses an indeterminate health hazard with regard to dermal contact and
possible accidental ingestion of contaminants in surface media.

In the past, on-site workers may have been exposed to PCP and arsenic in the treatment
process from inhaling contaminated air, drinking contaminated groundwater, inadvertently
ingesting contaminated soil and dust, and dermally absorbing PCP. Past occupational
exposure to chemicals posed a likely health threat. However, it is not possible to recreate
exposure scenarios from which we could anticipate measurable health effects. Specific health
effects associated with past exposures to PCP and ACZA are included in the attached health
consultation (See Appendix A).

In addition to the conclusions above, DOH and ATSDR concluded the following:

The possibly exposed population is too small to conduct any meaningful comparison of
morbidity and mortality on diseases that may be associated with the observed levels of
exposure to site-related contaminants.

Professional health education is appropriate for area physicians and local health department
staff to address illness and symptoms that may be consistent with past exposures to harmful
site chemicals.